c - Server to Validate Credentials (Socket Programming) -

first of all, i'm beginner in c. program simulates server client connects via telnet on port 8000 , give username , password , server validates them. username client, have problem validating it. need compare username list of credentials, doesn't seem work. here's code i've written far...

#include <stdio.h> #include <sys/socket.h> #include <arpa/inet.h> #include <unistd.h> #include <string.h>  int main() {      char * credentialslist[7][2] = {{"alice","abcdef"}, {"bob","1234567"}, {"cindy","qwerty"}, {"david","abababab"}, {"eve", "cdefgh"}, {"frank","7654321"}, {"george", "12341234"}};     int serversocket=socket(af_inet, sock_stream, 0);     int new_socket, i;     char *message, client_message[10];     struct sockaddr_in server, client;     server.sin_family =  af_inet;     server.sin_addr.s_addr = inaddr_any;     server.sin_port = htons(8000);     bind(serversocket, (struct sockaddr *)&server, sizeof(server));     listen(serversocket,2);     int c = sizeof(struct sockaddr_in);     new_socket = accept(serversocket, (struct sockaddr *)&client, (socklen_t*)&c);     message = "welcome! connected server.\n\n";     write(new_socket, message, strlen(message));     message = "please enter valid username: ";     write(new_socket, message, strlen(message));     recv(new_socket, client_message, 10, 0);     (i=0; i<7; i++)     {         if (strcmp(credentialslist[i][0], client_message) == 0)         {             //             puts("got you");         }     }     return 0; } 

thanks in advance :)

in c programming string terminated null character (ie;'\0' hex value 0x00). @juhist says end data received using null character, here i'll clear whole client_message[] array null charatcer if receive , lets suppose 8 character 9th character terminated null character ensure that's string

memset(client_message,0x00,sizeof(client_message)); recv(new_socket, client_message, 10, 0);     (i=0; i<7; i++)     {         if (strcmp(credentialslist[i][0], client_message) == 0)         {             //             puts("got you");         }     }